If you want to see in realtime what's going on Digg you can use their digg spy page. This popular Digg feature uses a dynamic Ajax UI to let you see diggs as they happen. And now it serves as a model for a growing number of mashups that use web APIs to give you a realtime window into activity on a variety of services.

As anyone with multiple social networking accounts can attest to, keeping track of them all can be time consuming. AIM Lifestream is a service from AOL that aggregates a number of social networking sites, and now Lifestream has been integrated into AOL Instant Messenger.

There have been a lot of new socially based mashups showing up recently. In fact, we recently topped 700 social mashups. While many of these use the Facebook API or Twitter API, there are many more social APIs. The mashups below run the gamut, though, yes, also include Facebook.

The Salesforce.com Social Studio API supports the extraction, analysis, and modification of social media data from a user’s social studio account. The RESTful API provides direct access to the Social...